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Division Spotlight
Operations & Power
Members focus on the dissemination of knowledge and information in the area of power reactors with particular application to the production of electric power and process heat. The division sponsors meetings on the coverage of applied nuclear science and engineering as related to power plants, non-power reactors, and other nuclear facilities. It encourages and assists with the dissemination of knowledge pertinent to the safe and efficient operation of nuclear facilities through professional staff development, information exchange, and supporting the generation of viable solutions to current issues.
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ANS Student Conference 2025
April 3–5, 2025
Albuquerque, NM|The University of New Mexico
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The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Fusion Science and Technology
Latest News
Norway’s Halden reactor takes first step toward decommissioning
The government of Norway has granted the transfer of the Halden research reactor from the Institute for Energy Technology (IFE) to the state agency Norwegian Nuclear Decommissioning (NND). The 25-MWt Halden boiling water reactor operated from 1958 to 2018 and was used in the research of nuclear fuel, reactor internals, plant procedures and monitoring, and human factors.
Alain Godot, Célia Lepeytre, Jean-Charles Hubinois, Aurélien Arseguel, Jean-Pierre Daclin, Christophe Douche
Fusion Science and Technology | Volume 54 | Number 1 | July 2008 | Pages 231-234
Technical Paper | Waste Handling | doi.org/10.13182/FST08-A1802
Articles are hosted by Taylor and Francis Online.
This method enables an indirect, non intrusive and non destructive measurement of the Tritium activity in wastes drums. The amount of tritium enclosed inside a wastes drum can be determined by the measurement of the leak rate of 3He of this latter.The simulation predicts that a few months are necessary for establishing the equilibrium between the 3He production inside the drum and the 3He drum leak.In practice, after one year of storage, sampling 3He outside the drum can be realized by the mean of a confining chamber that collect the 3He outflow.The apparatus, the experimental procedure and the calculation of tritium activity from mass spectrometric 3He measurements are detailed. The industrial device based on a confinement cell and the automated process to measure the 3He amount at the initial time and after the confinement time is described.Firstly, reference drums containing a certified tritium activity (HTO) in addition to organic materials have been measured to qualify the method and to evaluate its performances.Secondly, tritium activity of organic wastes drums issued from the storage building in Valduc have been determined.Results of the qualification and optimised values of the experimental parameters are reported in order to determine the performances of this industrial device.As a conclusion, the apparatus enables the measurement of an activity as low as 1 GBq of tritium in a 200 liters drum containing organic wastes.
